Ars Technica: “Amazon rigged its platform to “routinely” push an overwhelming majority of customers to pay more for items that could’ve been purchased at lower costs with equal or faster delivery times, a class-action lawsuit has alleged. The lawsuit claims that a biased algorithm drives Amazon’s “Buy Box,” which appears on an item’s page and prompts shoppers to “Buy Now” or “Add to Cart.” According to customers suing, nearly 98 percent of Amazon sales are of items featured in the Buy Box, because customers allegedly “reasonably” believe that featured items offer the best deal on the platform. “But they are often wrong,” the complaint said, claiming that instead, Amazon features items from its own retailers and sellers that participate in Fulfillment By Amazon (FBA), both of which pay Amazon higher fees and gain secret perks like appearing in the Buy Box. “The result is that consumers routinely overpay for items that are available at lower prices from other sellers on Amazon—not because consumers don’t care about price, or because they’re making informed purchasing decisions, but because Amazon has chosen to display the offers for which it will earn the highest fees,” the complaint said. Authorities in the US and the European Union have investigated Amazon’s allegedly anticompetitive Buy Box algorithm, confirming that it’s “favored FBA sellers since at least 2016,” the complaint said. In 2021, Amazon was fined more than $1 billion by the Italian Competition Authority over these unfair practices, and in 2022, the European Commission ordered Amazon to “apply equal treatment to all sellers when deciding what to feature in the Buy Box.”..